Gray border prevents drawing on the edges of the image

### Describe the bug ​I am experiencing an issue where a gray border/frame is covering the edges of the image. Because of this border, I am unable to draw or paint on the actual edges of the image underneath it. The gray border is only a few pixels wide, but it completely blocks drawing at the very edge of the canvas. ### Steps to reproduce 1.Draw 2.Draw on image 3.Pick single media ### Expected behavior There should be no gray border, and I should be able to draw all the way to the absolute edges of the image, down to the very last pixel. ### Screenshots <img width="1280" height="2772" alt="Image" src="https://github.com/user-attachments/assets/7417aaec-1754-4a6b-8b34-81b8e5a3eb6a" /> ### Device POCO F7 ### OS Android16 ### Locale _No response_ ### App Version 4.0.0 ### FOSS or Market Market (Google Play)